Construction of Virtual Images for a Benchmark Test of 3D-PTV Algorithms for Flows

Virtual images for PIV are produced for the construction of a benchmark test tool of PTV systems. Camera parameters obtained by an actual experiment are used to construct the virtual images. LES(Large Eddy Simulation) data sets of a channel flow are used for generation of the virtual images. Using the virtual images and the camera's parameters. three-dimensional velocity vectors are obtained for a channel flow. The capabilities of a 3D-PTV algorithm are investigated by comparing the results obtained by the virtual images and those by an actual measurement for the channel flow.